<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>动态水球</title>
    <style>
        * {
            margin: 0;
            padding: 0;

        }

        body {
            height: 100vh;
            background: linear-gradient(rgb(70, 26, 216) 10%, rgb(3, 3, 110));

        }

        .main {
            width: 200px;
            height: 200px;
            border: 3px solid rgb(90, 189, 228);
            border-radius: 50%;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            padding: 10px;
        }

        .wave {
            width: 200px;
            height: 200px;
            background: darkturquoise;
            border-radius: 50%;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            overflow: hidden;
        }

        .wave::after {
            content: "";
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.8);
            position: absolute;
            left: 50%;
            top: 0;
            transform: translate(-50%, -60%);
            border-radius: 40%;
            animation: wave 5s linear infinite;
        }

        .wave::before {

            content: "suiyuan";
            position: absolute;
            left: 50%;
            top: 0;
            color: darkturquoise;
            z-index: 99;
            transform: translate(-50%, 30px);
            text-transform: uppercase;
        }

        @keyframes wave {
            100% {
                transform: translate(-50%, -60%) rotate(360deg);
            }
        }
    </style>
</head>

<body>
    <div class="main">
        <div class="wave"></div>
    </div>
</body>

</html>